Headset



FIG. 1 is a perspective view of the headset.

FIG. 2 is a top plan view thereof.

FIG. 3 is a bottom plan view thereof.

FIG. 4 is a side plan view (both sides are symmetric) thereof.

FIG. 5 is the other side plan view thereof.

FIG. 6 is an end plan view thereof; and,

FIG. 7 is the other end plan view thereof.

The broken lines form no part of the claimed design. 

CLAIM The ornamental design for a headset, as shown and described. 